LOINCActiveOrder

LOINC Code 45993-3: Modes of expression Set

45993-3 is a LOINC code used to identify Modes of expression Set in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Modes of expression. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Modes of expression. It is commonly used with the system or sample type ^Patient.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Order
  • Panel type: Organizer

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Modes of expression Set
  • Modes of expression
  • (Check all used by resident to make needs known)
  • Pan; Panel; Panl; Pnl; Point in time; Random; Survey; SURVEY.MDS

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Modes of expression SetModes of expressionPANEL.SURVEY.MDS-Pt^PatientSet

Frequently asked questions

Code details

Code45993-3
SystemLOINC
Display nameModes of expression Set
DescriptionModes of expression
ComponentModes of expression
Property-
TimingPt
System (specimen)^Patient
ScaleSet
ClassPANEL.SURVEY.MDS
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.52

Part names

Modes of expression-Pt^PatientSetPoint in time (spot)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 45993-3 | HealthAssure